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Related Experiment Videos

Hyperammonemia.

M L Batshaw

    Current Problems in Pediatrics
    |November 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Hyperammonemia, or elevated ammonia in the blood, requires urgent treatment to prevent brain damage. Early diagnosis and intervention, especially in newborns, are crucial for managing this condition.

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    Area of Science:

    • Biochemistry
    • Pediatrics
    • Metabolic Disorders

    Background:

    • Hyperammonemia, a condition of elevated plasma ammonium, is linked to various congenital and acquired diseases.
    • Ammonia can be the primary toxin, as in urea cycle disorders, or one of several metabolic disturbances, as in portal systemic encephalopathy.

    Observation:

    • Hyperammonemic episodes necessitate aggressive treatment to avert coma, brain damage, or mortality.
    • Treatment strategies include dietary protein restriction, adequate caloric intake, and nitrogen-removing agents.

    Findings:

    • Long-term management hinges on accurate diagnosis of the underlying disease, often identified through plasma amino acid and urinary organic acid measurements.
    • Invasive procedures like liver biopsy are rarely required for diagnosis.

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    Implications:

    • Prompt therapeutic interventions, particularly for neonatal-onset hyperammonemia, are vital to prevent severe neurological sequelae.
    • Measuring plasma ammonium levels is recommended for newborns presenting with unexplained lethargy, hypotonia, poor feeding, seizures, or respiratory distress.